[Solved] Check if windows application is running in C# .Net and VB.Net

I have added a TextBox to enter App name and a Button on Button click it will check and display status in Label of the Application Process Name.

C#

Namespaces

using System.Diagnostics;

Code

public bool IsProcessOpen(string name)
{
    foreach (Process clsProcess in Process.GetProcesses())
    {
        if (clsProcess.ProcessName.ToLower().Contains(name.ToLower()))
        {
            return true;
        }
    }
    return false;
}

private void button1_Click(object sender, EventArgs e)
{
    Process thisProc = Process.GetCurrentProcess();
    if (IsProcessOpen(this.textBox1.Text.Trim()) == false)
    {
        string message = string.Format("{0} is not running.", this.textBox1.Text.Trim());
        this.lblStatus.Text = message;

    }
    else
    {
        string message = string.Format("{0} is running.", this.textBox1.Text.Trim());
        this.lblStatus.Text = message;
    }
}

VB

Public Function IsProcessOpen(name As String) As Boolean
    For Each clsProcess As Process In Process.GetProcesses()
        If clsProcess.ProcessName.ToLower().Contains(name.ToLower()) Then
            Return True
        End If
    Next
    Return False
End Function
Private Sub button1_Click(sender As System.Object, e As System.EventArgs) Handles button1.Click
    Dim thisProc As Process = Process.GetCurrentProcess()
    If IsProcessOpen(Me.textBox1.Text.Trim()) = False Then
        Dim message As String = String.Format("{0} is not running.", Me.textBox1.Text.Trim())

        Me.lblStatus.Text = message
    Else
        Dim message As String = String.Format("{0} is running.", Me.textBox1.Text.Trim())
        Me.lblStatus.Text = message
    End If
End Sub

Screenshots